An Administration Model for RBAC Using Hierarchical Structure

The ARBAC97 and Crampton-Loizou models make an important contribution to the understanding and modeling of administration of role-based access control. However, there are several features of both models which we believe could be improved. In this paper, the concept of administrative scope is introduced and is used to manage RBAC model. A new administration model for RBAC using hierarchical structure is proposed. The new model has some significant advantages over both models.